CN101844925A - Process for preparing multilayer ZrB2-SiC complex phase ultrahigh temperature ceramic wafer material by tape casting - Google Patents
Process for preparing multilayer ZrB2-SiC complex phase ultrahigh temperature ceramic wafer material by tape casting Download PDFInfo
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- CN101844925A CN101844925A CN 201010179536 CN201010179536A CN101844925A CN 101844925 A CN101844925 A CN 101844925A CN 201010179536 CN201010179536 CN 201010179536 CN 201010179536 A CN201010179536 A CN 201010179536A CN 101844925 A CN101844925 A CN 101844925A
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- 239000011215 ultra-high-temperature ceramic Substances 0.000 title abstract description 8
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 238000010345 tape casting Methods 0.000 title abstract 3
- 239000000463 material Substances 0.000 title description 6
- 239000000919 ceramic Substances 0.000 claims abstract description 86
- 239000011230 binding agent Substances 0.000 claims abstract description 31
- 238000002360 preparation method Methods 0.000 claims abstract description 18
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 15
- 238000005245 sintering Methods 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims description 30
- 239000000843 powder Substances 0.000 claims description 21
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 20
- 238000000498 ball milling Methods 0.000 claims description 20
- 238000005266 casting Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 16
- 239000004014 plasticizer Substances 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 11
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical group CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 10
- 238000007766 curtain coating Methods 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 239000011812 mixed powder Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 5
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000000280 densification Methods 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000012528 membrane Substances 0.000 abstract 3
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000003078 antioxidant effect Effects 0.000 description 2
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011216 ultra-high temperature ceramic matrix composite Substances 0.000 description 1
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Abstract
The invention relates to ZrB2-SiC complex phase ultrahigh temperature ceramic, in particular to a process for preparing multilayer ZrB2-SiC complex phase ultrahigh temperature ceramic material by tape casting. The process for preparing multilayer ZrB2-SiC complex phase ultrahigh temperature ceramic material by tape casting is realized by the following steps: preparation of SiC ceramic biological membrane, preparation of ZrB2-SiC complex phase ceramic biological membrane, multilayer membrane stacking and laminating, binder removing and sintering; fracture toughness of the acquired multilayer ZrB2-SiC complex phase ultrahigh temperature ceramic material reaches 7-12Mpa.m1/2, flexural strength is 600-800MPa. The two indexes are obviously higher than those of ZrB2-SiC complex phase ceramic prepared by conventional method.
Description
Technical field
The present invention relates to ZrB
2-SiC complex phase ultrahigh-temperature pottery, particularly a kind of technology for preparing multilayer ZrB2-SiC multiple phase extraordinarily high temperature ceramic material by casting method.
Background technology
At space flight and aviation and weaponry field, ZrB
2-SiC ultrahigh-temperature ceramic composite have high-melting-point, high heat conductance, mechanical property strong, than the performance of a series of excellences such as the better oxidation-resistance of C/C matrix material, be expected to be widely used.But its present performance that shows can't satisfy the needs of practical application, be mainly reflected in moulding process and remain to be improved, and the toughness of material deficiency, antioxidant property remains further to be improved.Texturing is a kind of important channel of optimizing ceramic material property.This patent prepares multilayer ZrB by casting method
2-SiC ultrahigh temperature ceramic wafer utilizes ZrB
2(structure that 0～20Vol%) composite ceramic layer and SiC layer alternately pile up can improve the fracture toughness property of sheet material to-SiC widely, give full play to the oxidation-resistance of this complex phase ceramic, but and serialization scale operation, for the preparation and the application of ultrahigh-temperature pottery opens up a new way.
Summary of the invention
The technical problem that solves
This patent prepares multilayer ZrB by casting method
2-SiC ultrahigh temperature ceramic wafer utilizes ZrB
2(structure that 0～20Vol%) composite ceramic layer and SiC layer alternately pile up can improve the fracture toughness property of sheet material to-SiC widely, give full play to the oxidation-resistance of this complex phase ceramic, but and serialization scale operation, for the preparation and the application of ultrahigh-temperature pottery opens up a new way.
Technical scheme
A kind of casting method prepares multilayer ZrB
2The technology of-SiC multiple phase extraordinarily high temperature ceramic material is characterized in that being realized by following steps:
1, preparation SiC ceramic green film
After with 50 weight part particle diameters being 1: 1 dimethylbenzene of volume ratio and alcohol blend body and 0.5-1 weight part dispersant of SiC powder, 40-80 weight part of 1-10 μ m, about stirring ball-milling 24 hours, and then add 1.5-2.5 weight part plasticizer and 4-6 weight part binding agent respectively and continue ball milling and mixed about 24 hours; Re-use air pump behind the gained slurries filtration and carry out vacuum stripping and handle, obtain the slurry of viscosity, at last slurry is put into that curtain coating obtains the thick SiC ceramic green film of 20～500 μ m on the commercial casting machine at 50-200cps;
2, preparation ZrB
2-SiC composite ceramic green film
With 60 weight part particle diameters is the ZrB of 1-10 μ m
2After being 1: 1 dimethylbenzene of volume ratio and alcohol blend body and 0.5-1 weight part dispersant of 1-10 μ m SiC powder mixed powder, 40-80 weight part with particle diameter, about stirring ball-milling 24 hours, and then add 1.5-2.5 weight part plasticizer and 4-6 weight part binding agent respectively and continue ball milling and mixed about 24 hours, re-use air pump behind the gained slurries filtration and carry out the vacuum stripping processing, obtain the slurry of viscosity, at last slurry is put into that curtain coating obtains the thick ZrB of 20～500 μ m on the commercial casting machine at 50-200cps
2-SiC composite ceramic green film.
3, multilayer film piles up and pressing
Utilize a kind of double feed stacker stamping-out SiC ceramic green film and ZrB respectively
2-SiC ceramic green film, SiC ceramic green film and ZrB
2The thickness ratio of-SiC ceramic green film is 1: 10-4: 10, width is 5～50cm, and according to shown in Figure 1 with SiC ceramic green film and ZrB
2-SiC ceramic green film alternately piles up and obtains the ceramic green plate, total stack layer is several to can be controlled in 10～100 layers according to needs, thickness is at 5-35mm, then the ceramic green plate being sealed back input oil pressure or hydraulic equipment waits static pressure to handle, pressure is at 20～100Mpa, dwell time is 1-5min, and oil or water temperature are controlled at 60～80 ℃ in the press.
4, binder removal
The ceramic green plate is got rid of binding agent in low temperature oven weak oxide atmosphere, top temperature is controlled at 350～600 ℃ in the stove, and the time of whole eliminating binding agent is about 2 days;
5, burn till
At last ceramic plate is burnt till densification under vacuum or the rare gas element in High Temperature Furnaces Heating Apparatus.Top temperature is controlled at 1900～2200 ℃ during sintering.High-temperature holding time was at 2～5 hours.
Wherein said plasticizer is a dioctyl phthalate (DOP); Described binding agent is a polyvinyl butyral acetal; Described dispersion agent is PVB;
Wherein the described weak oxide atmosphere of step (4) is for passing through N
2Make O in the stove with the supply of air
2And N
2It is 1 that volume ratio is controlled at all the time: 20-1: 50;
Wherein SiC powder described in the step (2) amasss the ZrB that accounts for 1-10 μ m
20.1～20Vol% with 1-10 μ m SiC powder mixed powder.
Beneficial effect
The present patent application prepares multilayer ZrB by casting method
2-SiC multiple phase extraordinarily high temperature ceramic material, the controllable thickness of the controlled and individual layer of its number of plies, its fracture toughness property and oxidation-resistance are higher than the performance of the material of other traditional forming methods preparations, but and serialization scale operation.Its flexible raising has benefited from SiC layer and ZrB
2(thermal expansivity there are differences the internal stress that is produced to-SiC between 0.1～20Vol%) composite ceramic layer.The raising of antioxidant property is that this multilayered structure can promote the formation of anti-oxidation protection layer better.
The multilayer ZrB that obtains
2-SiC multiple phase extraordinarily high temperature ceramic material fracture toughness property reaches 7-12Mpa.m
1/2, flexural strength is 600-800Mpa.The ZrB that these two data all prepare apparently higher than ordinary method
2-SiC complex phase ceramic.
Description of drawings
Fig. 1 is ceramic green plate stack synoptic diagram
Wherein 101, SiC ceramic green film; 102, ZrB
2-SiC ceramic green film; 103, ceramic green plate.
Embodiment
Embodiment 1
A kind of casting method prepares multilayer ZrB
2The technology of-SiC multiple phase extraordinarily high temperature ceramic material, in realizing by following steps:
1, preparation SiC ceramic green film
After with the 50kg particle diameter being 1: 1 dimethylbenzene of volume ratio and alcohol blend body and 0.5kg dispersant of SiC powder, 40kg of 1-10 μ m, about stirring ball-milling 24 hours, and then add 1.5kg plasticizer and 4kg binding agent respectively and continue ball milling and mixed about 24 hours; Re-use air pump behind the gained slurries filtration and carry out vacuum stripping and handle, obtain the slurry of viscosity, at last slurry is put into that curtain coating obtains the thick SiC ceramic green film of 2 μ m on the commercial casting machine at 50-200cps;
2, preparation ZrB
2-SiC composite ceramic green film
With the 60kg particle diameter is the ZrB of 1-10 μ m
2After being 1: 1 dimethylbenzene of volume ratio and alcohol blend body and 0.5kg dispersant of 1-10 μ m SiC powder mixed powder, 40kg with particle diameter, about stirring ball-milling 24 hours, and then add 1.5kg plasticizer and 4kg binding agent respectively and continue ball milling and mixed about 24 hours, re-use air pump behind the gained slurries filtration and carry out the vacuum stripping processing, obtain the slurry of viscosity, at last slurry is put into that curtain coating obtains the thick ZrB of 20～500 μ m on the commercial casting machine at 50-200cps
2-SiC composite ceramic green film.
Wherein said particle diameter is the long-pending ZrB that accounts for 1-10 μ m of 1-10 μ m SiC powder
220Vol% with 1-10 μ m SiC powder mixed powder;
3, multilayer film piles up and pressing
Utilize a kind of double feed stacker the SiC ceramic green film and the ZrB of the above preparation of stamping-out respectively
2-SiC ceramic green film, SiC ceramic green film and ZrB
2The thickness ratio of-SiC ceramic green film is 1: 10-4: 10, width is at the adjustable film of 5～50cm, and according to shown in Figure 1 with SiC ceramic green film 101 and ZrB
2-SiC ceramic green film 102 alternately piles up and obtains ceramic green plate 103, total stack layer is several to can be controlled in 10～100 layers according to needs, thickness is at 5-35mm, then the ceramic green plate being sealed back input oil pressure or hydraulic equipment waits static pressure to handle, pressure is at 20～100Mpa, dwell time is 1-5min, and oil or water temperature are controlled at 60～80 ℃ in the press.
4, binder removal
The ceramic green plate is got rid of binding agent in low temperature oven weak oxide atmosphere, top temperature is controlled at 350～600 ℃ in the stove, and the time of whole eliminating binding agent is about 2 days;
5, burn till
At last ceramic plate is burnt till densification under vacuum or the rare gas element in High Temperature Furnaces Heating Apparatus.Top temperature is controlled at 1900～2200 ℃ during sintering.High-temperature holding time was at 2～5 hours.
Wherein said plasticizer is a dioctyl phthalate (DOP); Described binding agent is a polyvinyl butyral acetal; Described dispersion agent is PVB;
Described weak oxide atmosphere is for passing through N
2Make O in the stove with the supply of air
2And N
2It is 1 that volume ratio is controlled at all the time: 20-1: 50;
The multilayer ZrB that obtains
2-SiC multiple phase extraordinarily high temperature ceramic material fracture toughness property reaches 7-12Mpa.m
1/2, flexural strength is 600-800Mpa.The ZrB that these two data all prepare apparently higher than ordinary method
2-SiC complex phase ceramic
Embodiment 2
A kind of casting method prepares multilayer ZrB
2The technology of-SiC multiple phase extraordinarily high temperature ceramic material, in realizing by following steps:
1, preparation SiC ceramic green film
After with the 50kg particle diameter being 1: 1 dimethylbenzene of volume ratio and alcohol blend body and 1kg dispersant of SiC powder, 80kg of 1-10 μ m, about stirring ball-milling 24 hours, and then add 2.5kg plasticizer and 4-6kg binding agent respectively and continue ball milling and mixed about 24 hours; Re-use air pump behind the gained slurries filtration and carry out vacuum stripping and handle, obtain the slurry of viscosity, at last slurry is put into that curtain coating obtains the thick SiC ceramic green film of 20～500 μ m on the commercial casting machine at 50-200cps;
2, preparation ZrB
2-SiC composite ceramic green film
With the 60kg particle diameter is the ZrB of 1-10 μ m
2After being 1: 1 dimethylbenzene of volume ratio and alcohol blend body and 1kg dispersant of 1-10 μ m SiC powder mixed powder, 80kg with particle diameter, about stirring ball-milling 24 hours, and then add 2.5kg plasticizer and 6kg binding agent respectively and continue ball milling and mixed about 24 hours, re-use air pump behind the gained slurries filtration and carry out the vacuum stripping processing, obtain the slurry of viscosity, at last slurry is put into that curtain coating obtains the thick ZrB of 20～500 μ m on the commercial casting machine at 50-200cps
2-SiC composite ceramic green film.
The long-pending ZrB that accounts for 1-10 μ m of wherein said SiC powder
20.1Vol% with 1-10 μ m SiC powder mixed powder;
3, multilayer film piles up and pressing
Utilize a kind of double feed stacker the SiC ceramic green film and the ZrB of the above preparation of stamping-out respectively
2-SiC ceramic green film, SiC ceramic green film and ZrB
2The thickness ratio of-SiC ceramic green film is 1: 10-4: 10, width is at the adjustable film of 5～50cm, and according to shown in Figure 1 with SiC ceramic green film 101 and ZrB
2-SiC ceramic green film 102 alternately piles up and obtains ceramic green plate 103, total stack layer is several to can be controlled in 10～100 layers according to needs, thickness is at 5-35mm, then the ceramic green plate being sealed back input oil pressure or hydraulic equipment waits static pressure to handle, pressure is at 20～100Mpa, dwell time is 1-5min, and oil or water temperature are controlled at 60～80 ℃ in the press.
4, binder removal
The ceramic green plate is got rid of binding agent in low temperature oven weak oxide atmosphere, top temperature is controlled at 350～600 ℃ in the stove, and the time of whole eliminating binding agent is about 2 days;
5, burn till
At last ceramic plate is burnt till densification under vacuum or the rare gas element in High Temperature Furnaces Heating Apparatus.Top temperature is controlled at 1900～2200 ℃ during sintering.High-temperature holding time was at 2～5 hours.
Wherein said plasticizer is a dioctyl phthalate (DOP); Described binding agent is a polyvinyl butyral acetal; Described dispersion agent is PVB;
Described weak oxide atmosphere is for passing through N
2Make O in the stove with the supply of air
2And N
2It is 1 that volume ratio is controlled at all the time: 20-1: 50;
The multilayer ZrB2-SiC multiple phase extraordinarily high temperature ceramic material fracture toughness property that obtains reaches 7-12Mpa.m
1/2, flexural strength is 600-800Mpa.The ZrB2-SiC complex phase ceramic that these two data all prepare apparently higher than ordinary method.
Embodiment 3
A kind ofly prepare multilayer ZrB by casting method
2The technology of-SiC multiple phase extraordinarily high temperature ceramic material, in realizing by following steps:
1, preparation SiC ceramic green film
After with the 50kg particle diameter being 1: 1 dimethylbenzene of volume ratio and alcohol blend body and 0.8kg dispersant of SiC powder, 60kg of 1-10 μ m, about stirring ball-milling 24 hours, and then add 2kg plasticizer and 5kg binding agent respectively and continue ball milling and mixed about 24 hours; Re-use air pump behind the gained slurries filtration and carry out vacuum stripping and handle, obtain the slurry of viscosity, at last slurry is put into that curtain coating obtains the thick SiC ceramic green film of 20～500 μ m on the commercial casting machine at 50-200cps;
2, preparation ZrB
2-SiC composite ceramic green film
With the 60kg particle diameter is the ZrB of 1-10 μ m
2After being 1: 1 dimethylbenzene of volume ratio and alcohol blend body and 0.8kg dispersant of 1-10 μ m SiC powder mixed powder, 60kg with particle diameter, about stirring ball-milling 24 hours, and then add 2kg plasticizer and 5kg binding agent respectively and continue ball milling and mixed about 24 hours, re-use air pump behind the gained slurries filtration and carry out the vacuum stripping processing, obtain the slurry of viscosity, at last slurry is put into that curtain coating obtains the thick ZrB of 20～500 μ m on the commercial casting machine at 50-200cps
2-SiC composite ceramic green film.
The long-pending ZrB that accounts for 1-10 μ m of wherein said SiC powder
210Vol% with 1-10 μ m SiC powder mixed powder;
3, multilayer film piles up and pressing
Utilize a kind of double feed stacker the SiC ceramic green film and the ZrB of the above preparation of stamping-out respectively
2-SiC ceramic green film, SiC ceramic green film and ZrB
2The thickness ratio of-SiC ceramic green film is 1: 10-4: 10, width is at the adjustable film of 5～50cm, and according to shown in Figure 1 with SiC ceramic green film 101 and ZrB
2-SiC ceramic green film 102 alternately piles up and obtains ceramic green plate 103, total stack layer is several to can be controlled in 10～100 layers according to needs, thickness is at 5-35mm, then the ceramic green plate being sealed back input oil pressure or hydraulic equipment waits static pressure to handle, pressure is at 20～100Mpa, dwell time is 1-5min, and oil or water temperature are controlled at 60～80 ℃ in the press.
4, binder removal
The ceramic green plate is got rid of binding agent in low temperature oven weak oxide atmosphere, top temperature is controlled at 350～600 ℃ in the stove, and the time of whole eliminating binding agent is about 2 days;
5, burn till
At last ceramic plate is burnt till densification under vacuum or the rare gas element in High Temperature Furnaces Heating Apparatus.Top temperature is controlled at 1900～2200 ℃ during sintering.High-temperature holding time was at 2～5 hours.
Wherein said plasticizer is a dioctyl phthalate (DOP); Described binding agent is a polyvinyl butyral acetal; Described dispersion agent is PVB;
Described weak oxide atmosphere is for passing through N
2Make O in the stove with the supply of air
2And N
2It is 1 that volume ratio is controlled at all the time: 20-1: 50;
The multilayer ZrB that obtains
2-SiC multiple phase extraordinarily high temperature ceramic material fracture toughness property reaches 7-12Mpa.m
1/2, flexural strength is 600-800Mpa.The ZrB that these two data all prepare apparently higher than ordinary method
2-SiC complex phase ceramic.
Claims (4)
1. a casting method prepares multilayer ZrB
2The technology of-SiC multiple phase extraordinarily high temperature ceramic material is characterized in that being realized by following steps:
(1), preparation SiC ceramic green film
After with 50 weight part particle diameters being 1: 1 dimethylbenzene of volume ratio and alcohol blend body and 0.5-1 weight part dispersant of SiC powder, 40-80 weight part of 1-10 μ m, stirring ball-milling 24 hours, and then add 1.5-2.5 weight part plasticizer and 4-6 weight part binding agent respectively and continue ball milling and mixed 24 hours; Carry out vacuum stripping behind the gained slurries filtration again and handle, obtain the slurry of viscosity, at last the slurry curtain coating is obtained the thick SiC ceramic green film of 20～500 μ m at 50-200cps;
(2), preparation ZrB
2-SiC composite ceramic green film
With 60 weight part particle diameters is the ZrB of 1-10 μ m
2After powder and particle diameter are 1: 1 dimethylbenzene of volume ratio and alcohol blend body and 0.5-1 weight part dispersant of mixed powder, 40-80 weight part of 1-10 μ m SiC powder, about stirring ball-milling 24 hours, and then add 1.5-2.5 weight part plasticizer and 4-6 weight part binding agent respectively and continue ball milling and mixed about 24 hours, re-use behind the gained slurries filtration and carry out the vacuum stripping processing, obtain the slurry of viscosity, at last the slurry curtain coating is obtained the thick compound ZrB of 20～500 μ m at 50-200cps
2-SiC ceramic green film;
(3), multilayer film piles up and pressing
With SiC ceramic green film and ZrB
2-SiC ceramic green film is stamping-out respectively, obtains SiC ceramic green film and ZrB
2The thickness ratio of-SiC ceramic green film is 1: 10-4: 10, and width is 5～50cm; With SiC ceramic green film and ZrB
2-SiC ceramic green film alternately piles up and obtains the ceramic green plate, and total stack layer numerical control is built in 10～100 layers, and thickness is sealed the ceramic green plate back static pressure then and handled at 5-35mm, and pressure is at 20～100Mpa, and the dwell time is 1-5min, and temperature is 60～80 ℃;
(4), binder removal
The ceramic green plate is got rid of binding agent in low temperature oven weak oxide atmosphere, top temperature is controlled at 350～600 ℃ in the stove, and the time of whole eliminating binding agent is at 48h;
(5), burn till
At last ceramic plate is burnt till densification under vacuum or the rare gas element in High Temperature Furnaces Heating Apparatus, top temperature is controlled at 1900～2200 ℃ during sintering.High-temperature holding time was at 2～5 hours.
2. technology according to claim 1 is characterized in that described plasticizer is a dioctyl phthalate (DOP); Described binding agent is a polyvinyl butyral acetal; Described dispersion agent is PVB.
3. technology according to claim 1 is characterized in that the weak oxide atmosphere described in the step (4) is for passing through N
2With the supply of air, make O in the stove
2And N
2Volume ratio is controlled at 1: 20-1: 50.
4. technology according to claim 1 is characterized in that the wherein long-pending ZrB that accounts for 1-10 μ m of SiC powder described in the step (2)
20.1～20Vol% with 1-10 μ m SiC powder mixed powder.
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| CN102173810A (en) * | 2010-12-30 | 2011-09-07 | 山东理工大学 | Preparation method of layered zirconium boride superhigh temperature ceramic with heat insulation function |
| CN102173827A (en) * | 2010-12-30 | 2011-09-07 | 山东理工大学 | Preparation method of zirconium boride-silicon carbide/boron nitride lamellar ultrahigh-temperature ceramic |
| CN102225868A (en) * | 2011-04-13 | 2011-10-26 | 中材高新材料股份有限公司 | Preparation of zirconium diboride-silicon carbide ultrahigh-temperature ceramic by slip-casting molding non-pressurized sintering method |
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| CN110204345A (en) * | 2019-05-13 | 2019-09-06 | 中国科学院上海硅酸盐研究所 | A kind of layer structure Cf/ZrB2- SiC ultra-temperature ceramic-based composite material and preparation method thereof |
| CN111153701A (en) * | 2020-01-06 | 2020-05-15 | 哈尔滨理工大学 | ZrB2-SiC composite coating and preparation method thereof |
| CN113149676A (en) * | 2021-06-02 | 2021-07-23 | 哈尔滨工程大学 | Method for sintering in-situ toughened boron carbide-based multiphase ceramic by using two-step method |
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| CN102173810A (en) * | 2010-12-30 | 2011-09-07 | 山东理工大学 | Preparation method of layered zirconium boride superhigh temperature ceramic with heat insulation function |
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| CN104478436A (en) * | 2014-11-20 | 2015-04-01 | 济南大学 | Preparation method of lamellar silicon carbide/zirconium carbide ultrahigh-temperature ceramic |
| CN107176839A (en) * | 2017-05-10 | 2017-09-19 | 黑龙江科技大学 | ZrB2SiC layer shape composite ceramics and preparation method thereof |
| CN110204345A (en) * | 2019-05-13 | 2019-09-06 | 中国科学院上海硅酸盐研究所 | A kind of layer structure Cf/ZrB2- SiC ultra-temperature ceramic-based composite material and preparation method thereof |
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